What is 8 oz butter to cups?
The ingredient is set to butter. Type a value in either box, and the answer shows it in the other unit as you type.
- Cups (cup)
- 0.999102
8 oz = 0.999102 cups (Butter, 227 g per cup).
Cups (cup): 0.999102. 8 oz = 0.999102 cups (Butter, 227 g per cup).
Cups (cup) by ounces (oz)
How to calculate
Converts ounces of butter to cups and back, from the weight of 1 cup (butter: 227 g).
Example with the default inputs (Ounces (oz) 8, Ingredient Butter, 227 g per cup): 8 oz = 0.999102 cups (Butter, 227 g per cup).
Formula: cups = oz × 28.349523125 ÷ 227, where grams per cup depends on the ingredient (butter: 227 g)
- Grams per cup are USDA FoodData Central (SR Legacy) portion weights for one level US cup (8 US fluid ounces): all-purpose flour 125 g (FDC 168894), granulated sugar 200 g (FDC 169655), brown sugar, packed 220 g (FDC 168833), powdered sugar, unsifted 120 g (FDC 169656), whole milk 244 g (FDC 171265), butter 227 g (FDC 173410), olive oil 216 g (FDC 171413), honey 339 g (FDC 169640), white rice, uncooked 185 g (FDC 169756).
- Ounces here are avoirdupois ounces, a weight: 1 oz = 1/16 lb = 28.349523125 g. A US fluid ounce is a volume.
- Water is pure water: 0.999975 kg per liter at 4 °C and 0.998207 kg per liter at 20 °C, from the Tanaka et al. (2001) density formula.
- How you fill the cup changes the weight: packed, sifted, or scooped flour can differ by 20% or more.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.
Worked examples
Each example is checked against the calculator on every build.
- Ounces (oz) 8, Ingredient Butter, 227 g per cup gives Cups (cup) 0.999102.Source: USDA FoodData Central SR Legacy 173410: 1 cup = 227 g
- Ounces (oz) 16, Ingredient Granulated sugar, 200 g per cup gives Cups (cup) 2.267962.Source: USDA FoodData Central SR Legacy 169655: 1 cup = 200 g
Other questions people ask
What is 8 oz of butter in cups?
8 oz of butter is 0.999102 cups. The formula is cups = oz × 28.349523125 ÷ 227: USDA FoodData Central lists 1 level US cup at 227 g (butter, FDC 173410).
How do I convert ounces of butter to cups?
cups = oz × 28.349523125 ÷ 227, where grams per cup depends on the ingredient (butter: 227 g). For example, 16 oz of butter is 1.998204 cups.
How many sticks of butter are in a cup?
2. USDA FoodData Central lists 1 stick of salted butter at 113 g and 1 cup at 227 g. So 8 oz of butter (226.796185 g) is 0.999102 cups, about 2 sticks.
How many cups is 8 oz of another ingredient?
It depends on the ingredient, because a weight does not fix the volume. 8 oz is about, in cups: all-purpose flour 1.814; granulated sugar 1.134; brown sugar, packed 1.031; powdered sugar, unsifted 1.89; water at 4 °C 0.9586; water at 20 °C 0.9603; whole milk 0.9295; olive oil 1.05; honey 0.669; white rice, uncooked 1.226. Pick the ingredient in the converter for its exact answer.
Is an ounce here a weight or a volume?
A weight: the avoirdupois ounce, 1/16 of a pound (28.349523125 g exactly). A US fluid ounce (29.57 mL) measures volume, as on the oz to cups page.